O4-review/random-number-generator.md

@@ -16,4 +16,8 @@ The number of points is slightly different because a different random downsampli
 
 ## bilby_pipe update (https://git.ligo.org/lscsoft/bilby_pipe/-/merge_requests/565)
 
-This will require an update to `bilby_pipe` after the release of `Bilby` is made to make sure the random seed is set properly.
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+This will require an update to `bilby_pipe` after the release of `Bilby` is made to make sure the random seed is set properly.
+
+## bilby_mcmc
+
+There may be unknown issues remaining with parallelization in bilby_mcmc. Resolving these will be deferred to a future release.
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